[Solved] Text not centered between borders?

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sticky-nav ul li a:hover {
    height: 35px !important;
    line-height: 31px !important; /* change this */

You’ll need to apply the same to the non-hover state to prevent a jump:

#sticky-nav ul li a {
    ...
    line-height: 31px !important;

Consider reconfiguring to this so that the borders persist when the user is inside the dropdown menu:

#sticky-nav ul > li:hover > a {

solved Text not centered between borders?